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Sign PDF

Upload a PDF and a transparent-background PNG of your signature. We stamp it on the page you choose.

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Upload your files

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Options & convert

Options
Upload a PDF and a signature image to see a live preview.
Your signature

Upload a PNG or JPG signature to overlay it on the page.

Signature position
Signature width: 25% of page25%
Opacity100%
Margin from edge24 pt
Signature rotation
Upload files to enable this tool.

What is the Sign PDF tool?

Sign PDF lets you drop a handwritten signature onto a contract, form or letter without printing anything. Upload the PDF, then either upload a transparent-background PNG of your signature, draw a new one in the workspace, or type your name in a signature-style font.

Position the signature exactly where it needs to go — use a preset corner or drag it pixel-perfect on the live preview — and download a signed PDF ready to send back. The rest of the document stays untouched and remains a real PDF, not a flattened image.

How to sign a PDF

  1. Upload the PDF you need to sign and pick the page where the signature should appear.
  2. Provide your signature: upload a PNG, draw it with your mouse or trackpad, or type your name and let us style it.
  3. Drag the signature to fine-tune the position, set the size, then click 'Convert & download' for the signed PDF.

Why use our Sign PDF tool?

  • Three ways to provide a signature: upload, draw, or type.
  • Drag the signature anywhere on the page for pixel-perfect placement, or snap to a preset corner.
  • Signs the page you choose without rasterising the rest of the document.
  • Works on multi-page PDFs — pick the exact page or apply to all pages.

Frequently Asked Questions

Is this a legally binding electronic signature?

It's a visual signature — the same kind that scanning and pasting a handwritten signature produces. For contracts that require certified e-signatures (eIDAS, ESIGN), use a dedicated service that issues a signed audit trail.

Does the PDF stay editable for me?

The signed page is a regular PDF page with your signature as an embedded image. The rest of the document is untouched.

What format should my signature image be?

A PNG with a transparent background works best. JPGs work but bring a white box with them. The built-in 'draw' and 'type' modes always produce transparent backgrounds.

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Sign PDF · DocBlender